you receive a sample slide of an organism. While observing it under a microscope, you noticed that the organism is a single celled and green in color. There are multiple individual organisms on the slide. Based on this initial information, guess that it is either a bacterium or a protist. Which tray is least likely to help you identify the correct group of this organism?

a. The absence of cell structure membranes.
b. The presence of the cell structures in the cell.
c. The presence of different cell shapes.
d. The absence of nucleus.

d. The absence of nucleus.